Hamilton Square, New Jersey

Nearest ZIP codes to Hamilton Square

These are the ZIP codes nearest to Hamilton Square, each listed with the post office it is named after.

Area codes for Hamilton Square

• Area code 609

  In service since 1957. Shares its area with 640. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 640

  In service since September 17, 2018. Shares its area with 609. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Hamilton Square is in the Eastern Time zone.

Towns near Hamilton Square

• Robbinsville Center1.8 km (1.1 mi)
• Millstone Township1.9 km (1.2 mi)
• Mercerville3.7 km (2.3 mi)
• Yardville4.4 km (2.7 mi)
• Princeton Junction4.7 km (2.9 mi)
• White Horse5.7 km (3.5 mi)
• Groveville6.1 km (3.8 mi)
• Windsor6.4 km (4.0 mi)